package com.jn.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * 配置域名过滤器，拦截不符合规则的域名
 */
@Component//标注一个类为Spring容器的Bean，（把普通pojo实例化到spring容器中，相当于配置文件中的<bean id="" class=""/>）
public class UrlFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        System.out.println("经过第2个过滤器UrlFilter");
        ServerHttpRequest request = exchange.getRequest();
        String url = request.getURI().getPath();
        System.out.println("url:"+url);
        return chain.filter(exchange);
    }
    @Override
    public int getOrder() {
        return 2;//经过过滤器的顺序，第二个
    }
}
